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UNITED4 STATES l PATENT OFFICE,

THOMAS J. MAYALL, oE READING, MASSACHUSETTS; LUCY A. MAYALL, oE SAMEPLACE, EXECUTEIX oE sAID THOMAS J. MAYALL, DECEASED.

-ELEVATED RAlLwAY.

SPECIFICATION forming part of Letters Patent No. 384,921, dated June 19,18.88. Application filed August 26, 1887. Serial No. 247,936. (Nomodel.)`

To @ZZ whom t may concern:

Be it known that l, THOMAS J. MAYALI., a

" citizen of the United States, and a resident of` Reading, in thecounty of Middlesex and State of Massachusetts, have invented a new anduseful Improvement in Elevated Railways, of which the following, takenin connection with the accompanying drawings, is a specification. Thepresent invention relates to systems of xo elevated cable railways suchas described in my application tiled June 14, 1887, Serial No. 241,252.

It consists in an arrangement of elevators for conveying passengers fromthe street to r 5 the elevated station, the elevator-cars being actuatedby powerderived from the constantlymoving traction-cable.

An explicitdescription ofthe various parts, their function andoperation, will be compre- 2c hended by reference to the accompanyingdrawings, forming apart of this specification, wherein- Figure 1 is afront elevation of the rail-bed support with the mechanism operating the2 5 elevatorlft thereto attached,with the elevator in longitudinalsection, Fig. 2 being a top plan ot' the same with the elevator intransverse section, and Fig. 3 a side elevation of said mechanism.

I will now refer to my invention, utilizing the power of the cable toraise and lower my elevator compartment or lift, consisting in themechanism broadly designated as F, the elementary parts comprising avertically-shifti ng drum, G, fitted terminally with integralfriction-cones I-I and l. The former, beinguppermost, is exhibited asSeated within a gear, J. which is keyed to its shaft L, theclamp-roll Krevolving freely thereon, said drum, when 4o each of its clutches isdisengaged, being held stationary through a stop-motion comprising thespur M and the rack M2, (shown in Figs. 2 and 4,) consequentlysuspending the elevator-car at any point of its progress 'by themanipulation of the working-cords, at the option of the operator, ashereinafter more fully explained. The gear J engages with the adjacentcorresponding gear, N, which is also keyed to its shaft O, and to whichmotion is imparted from the cable through said auxili- 5o aryclamping-rolls P Q R, (clearly exhibited in Fi g3.) The consecutivesteps in the operation of the above features of my invention will bepresently reviewed.

The triangular 'rocker-shipper S, Fig. 2, is 55 pivotally attached tothe supportingcolumn A, its shipperarni T being pivotally secured to theneck of the friction-cone H, while its radial arms U U communicatethrough the ends V V of the cord, which passes over and 6o under thefriction-rolls W We', thence around Secondary friction-rolls W i W3,where it enters the car longitudinally with its length, from which pointit is manipulated by the custodian therein. Said cord is provided withsuitables stops, XX', which limit the movement of said lift Z. These arenicely adjusted and rigidly secured in their respective positions, thusautomatically regulating the distance the lift is to travel withinsafety limits. A counter- 7o balance, a, equipoises the drum G, whilethe lifting-cable b will be observed passing over the drum c, thencearound the friction-roll d to the shifting-drum G, which, through theorganized mechanism F, operates my elevator as follows:

The car Z, Fig. 2, about to ascend, the custodian thereof, at the pointV2 within the lift,` through the length V of the cord, rotates theshipper-arm U in the direction of arrow 2,

and raises the shiftingdrum G, engaging the conc H with the gear J,(illustrated in Fig. 4,) thereby rotating said drum in the direction ofarrow l until the limit of altitude is reached bythe car, when the cordsare actuated in reverse order, following the direction of arrows 3,through the intervention of the stop X to a sufficient degree todisengage said cone H and engage the temporary locking devices M MZ,which hold the disengageddrum motion-A 9o less upon its shaft and stopthe car.

When ready to descend, the pullcord g within the car is pulled by theoperatorslightly farther in the same direction,disengaging said lockingappliance and engaging the cone I within the clamp-roll K, which impartsa reverse motion, unwinding the cable b and permitting the car to fall.If desirable, said stops X X may be omitted, and the rise and fall ofthe car may be governed Wholly by the manipulation of the pull-cord,with, it' further desired, the assistance of a simple gage secured uponthe Wall of the carat a convenient height, through which the pull-oordmight pass and register, by indicating-rings thereon, the dis tance theear travels and the points at which the mechanism F should be actuated.

Having described the construction and operation of my improved system ofduplex elevated railways,l desire to secure by Letters Patent, andclaiml. The combination, with the supportingcolumns and tractioncable ofan elevated railway, of an elevator-car, its hoistingcable, andmechanism, as set forth, for communicating motion to said ear in eitherdirection from said traction-cable, substantially as described.

2. The combination, with the supports and traction-cable, of thegrip-rollers carried by said supports, the elevator-car, itshoistingcable,the shi ftingd rn 1n upon which said'cable is Wound, andgearing connectingY said griprollers with said drum for rotating thelatter and raising or lowering said car, substantially as described.

3. In combination with a rail-support, A,

the actuating mechanism F, embracing a shifty ing-drum, G, provided witha stop-motion, M M2, and having terminal friction-cones H and Iintegrally connected therewith, a gear, J, to elevate thelift, and aclamp\vheel, K, to lower the same, the auxiliary wheels P Q R,

gear N, and shafts L and O, constructed and v adapted to receive motionfrom an elevated

